Patents Assigned to Suzhou Littelfuse OVS CO., LTD
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Publication number: 20240147681Abstract: A sensor device may include a substrate within the housing, a sensing element coupled to the substrate, and a shielding element surrounding the sensing element, wherein the shielding element extends through an opening of the substrate. The sensor device may further include a busbar extending through the housing, wherein the shielding element further extends through an indentation along at least one side of the busbar.Type: ApplicationFiled: October 26, 2023Publication date: May 2, 2024Applicant: c/o Suzhou Littelfuse OVS Co., Ltd.Inventor: Tao Chen
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Publication number: 20240062981Abstract: Provided are approaches for integrating solenoids and fuses within a compact housing. In one approach, a fuse apparatus may include a housing including a main body, a cover coupled to a first side of the main body, and a base coupled to a second side of the main body, wherein the cover and the main body define a fuse cavity, and wherein the base and the main body define a main cavity. The fuse apparatus may further include a plurality of fuses disposed within the fuse cavity, and a plurality of solenoids electrically connected to a printed circuit board (PCB), wherein the plurality of fuses is disposed above the PCB, and wherein the PCB is positioned within the main cavity.Type: ApplicationFiled: November 2, 2023Publication date: February 22, 2024Applicant: c/o Suzhou Littelfuse OVS Co., Ltd.Inventors: Du Cheng, Yanqiu Jia, Dan Jin
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Patent number: 11854756Abstract: Provided herein is an improved solenoid electrical switch. In some embodiments, a solenoid electrical switch may include a plunger at least partially disposed in a central aperture of a solenoid for rotation and axial reciprocation between at least two positions into and out of the central aperture relative to a magnetic coupling member. The plunger may include a first component including a main body and a central slot within the main body, and a second component at least partially disposed within the central slot, wherein the second component may include an engagement surface engaged with an inner surface of the central slot.Type: GrantFiled: July 16, 2019Date of Patent: December 26, 2023Assignee: Suzhou Littelfuse OVS Co., Ltd.Inventors: Yanqiu Jia, Dan Jin, Du Cheng
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Patent number: 11842875Abstract: Provided are approaches for integrating solenoids and fuses within a compact housing. In one approach, a fuse apparatus (100) may include a housing (102) including a main body (104), a cover (106) coupled to a first side (110) of the main body (104), and a base (112) coupled to a second side (116) of the main body (104), wherein the cover (106) and the main body (104) define a fuse cavity (120), and wherein the base (112) and the main body (104) define a main cavity. (122) The fuse apparatus (100) may further include a plurality of fuses (124) disposed within the fuse cavity (120), and a plurality of solenoids (130) electrically connected to a printed circuit board (PCB) (132), wherein the plurality of fuses (124) is disposed above the PCB (132), and wherein the PCB (132) is positioned within the main cavity (122).Type: GrantFiled: July 11, 2019Date of Patent: December 12, 2023Assignee: Suzhou Littelfuse OVS Co., Ltd.Inventors: Du Cheng, Yanqiu Jia, Dan Jin
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Patent number: 11823857Abstract: A fuse module including a housing, a busbar disposed within the housing adjacent an interior surface of a rear wall of the housing, a terminal extending through a front wall of the housing and having a fuse coupling portion disposed within the housing adjacent an interior surface of a front wall of the housing and a conductor coupling portion protruding from an exterior surface of the front wall of the housing, and a movable pushrod extending through the rear wall of the housing and having a head portion disposed adjacent a rigid portion of the busbar for moving the rigid portion of the busbar between a retracted position, the rigid portion of the busbar located near the interior surface of the rear wall, and an extended position wherein the rigid portion of the busbar is located further from the interior surface of the rear wall relative to the retracted position.Type: GrantFiled: October 3, 2022Date of Patent: November 21, 2023Assignee: Suzhou Littelfuse OVS Co., Ltd.Inventors: Edward Jin, Vector Li, Zhibo Liu
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Patent number: 11802892Abstract: Provided herein are approaches for determining a status of a fuse or relay. In some embodiments, a system may include a first fuse or relay connected between a first input and a first output, and an optocoupler electrically connected with the first fuse or relay, wherein the optocoupler is operable to monitor a differential voltage of the first input or the first output. The system may further include an input/output (IO) expander receiving a status signal representing a state of the first fuse or relay, wherein only a single input port of the IO expander receives the status signal representing the state of the first fuse or relay.Type: GrantFiled: October 29, 2019Date of Patent: October 31, 2023Assignee: Suzhou Littelfuse OVS Co., Ltd.Inventors: Yanqiu Jia, Yu Wang, Du Cheng
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Patent number: 11796556Abstract: A speed sensor assembly (114) includes a printed circuit board (PCB) (120) having a first main side and a second main side, a magnet (116) directly coupled to the first main side of the PCB (120), a sensor (118) electrically connected to the PCB (120), and a pole piece (125) directly coupled to the magnet (116) and to the sensor (118), wherein the magnet (116) includes a slot partially enclosed by the pole piece (125). The speed sensor assembly (114) including a slotted magnet (116) to reduce magnetic field amplitude for single sensing element hall effect sensor applications. The speed sensor assemblies (114) operate with both minimum and maximum air gaps.Type: GrantFiled: September 19, 2018Date of Patent: October 24, 2023Assignee: Suzhou Littelfuse OVS Co., Ltd.Inventor: Jiao Yu
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Publication number: 20230327418Abstract: A power distribution unit includes a fuse, a relay, a busbar, and a heat dissipation bolt. The fuse and the relay each have one terminal. The busbar is located between the fuse and the relay and connects to the two terminals. The heat dissipation bolt connects the busbar to a housing of the power distribution unit and includes two threaded bolts, one going through the busbar and the other going through the housing.Type: ApplicationFiled: March 14, 2023Publication date: October 12, 2023Applicant: Suzhou Littelfuse OVS Co., Ltd.Inventors: EDWARD JIN, DU CHENG, Sunny Pan
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Publication number: 20230243670Abstract: Provided are linear position sensing systems. In some embodiments, a position sensing system may include a sensor and a magnet assembly adjacent the sensor, wherein the magnet assembly includes a first magnet and a second magnet each having a first width and a first height, and wherein the first width and the first height are different. The magnet assembly may include a third magnet and a fourth magnet adjacent the first and second magnets, each of the third and fourth magnets having a second width and a second height, wherein the second width and the second height are the same.Type: ApplicationFiled: January 27, 2023Publication date: August 3, 2023Applicant: Suzhou Littelfuse OVS Co., Ltd.Inventors: Xudong Fang, Jay Kruger, Elsie Xu
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Publication number: 20230131568Abstract: A jumper bus bar may include a frame and a terminal assembly. The frame is to be seated along a surface of a housing of an electrical box. The terminal assembly features a first fork terminal perpendicular to the frame and a second fork terminal perpendicular to the frame. The first fork terminal is adjacent the second fork terminal. The terminal assembly also includes a slot to receive a terminal of a fuse or relay, the slot being coplanar with the frame.Type: ApplicationFiled: October 11, 2022Publication date: April 27, 2023Applicant: Suzhou Littelfuse OVS Co., Ltd.Inventors: Shangchun Pan, Renan Liu, Edward Jin
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Publication number: 20230129495Abstract: A fuse holder including a main body portion formed of an electrically insulating material, the main body portion defining a hollow interior and having first and second through holes formed in opposing rear and front walls thereof, respectively, the first and second through holes being aligned with one another, an integrated first electrical cable having a first ring terminal extending into the hollow interior of the main body portion, the first ring terminal disposed on the rear wall and aligned with the first through hole in the rear wall, and an integrated second electrical cable having a second ring terminal extending into the hollow interior of the main body portion, the second ring terminal disposed on the front wall and aligned with the second through hole in the front wall.Type: ApplicationFiled: September 12, 2022Publication date: April 27, 2023Applicant: Suzhou Littelfuse OVS Co., Ltd.Inventors: Shangchun Pan, Renan Liu, Dan Jin
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Publication number: 20230083624Abstract: A seal for securing a cable to a fuse box includes a plastic body and a rubber insert. The plastic body has a receiving cavity along an inner surface. The rubber insert features an outside structure to join with the inner surface of the plastic body, an inside structure to surround the cable, and a fitting rib along an outside surface of the outside structure, the fitting rib to occupy the receiving cavity. The inside structure of the rubber insert moves in response to movement of the cable while the outside structure does not move.Type: ApplicationFiled: August 31, 2022Publication date: March 16, 2023Applicant: Suzhou Littelfuse OVS Co., Ltd.Inventors: Rex Liu, Sunny Pan, Vector Li
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Publication number: 20230042505Abstract: A snap-on assembly includes a housing that holds an integrated circuit with a sensor. A connector supplies power to the integrated circuit and transmits a signal from the integrated circuit to an electronic circuit. An insert fits into an opening of the housing and secures a conductor in the housing without a mechanical fastener. The sensor measures a magnetic field resulting from a current traveling through the conductor.Type: ApplicationFiled: July 29, 2022Publication date: February 9, 2023Applicant: Suzhou Littelfuse OVS Co., Ltd.Inventors: Engelbert Hetzmannseder, Jianfei Zhao, Linas Sarkauskas
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Publication number: 20230009053Abstract: Provided herein are approaches for determining a status of a fuse. In some embodiments, a system may include a first fuse electrically connected to a first node and to a first resistor, and a second fuse electrically connected to a second node and a second resistor, wherein the first and second fuses are in parallel connection to a same port of a multiplexer. The system may further include a controller communicably connected with the multiplexer, the controller operable to read a voltage level of the first and second nodes.Type: ApplicationFiled: December 26, 2019Publication date: January 12, 2023Applicant: Suzhou Littelfuse OVS Co., Ltd.Inventors: Yanqiu JIA, Dan JIN, Yu WANG
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Publication number: 20230006439Abstract: Disclosed are electrical relay assemblies including a positive temperature coefficient thermistor (PTC) for reverse connection protection. In some embodiments, a relay assembly includes a relay socket receiving a relay, a power source connected to the relay socket, and a positive temperature coefficient thermistor (PTC) connected between the relay socket and the power source.Type: ApplicationFiled: December 5, 2019Publication date: January 5, 2023Applicant: Suzhou Littelfuse OVS Co., Ltd.Inventors: Yanqiu JIA, Dan Jin, Yu Wang
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Publication number: 20230003773Abstract: Provided herein are approaches for determining a status of a fuse or relay. In some embodiments, a system may include a first fuse or relay connected between a first input and a first output, and an optocoupler electrically connected with the first fuse or relay, wherein the optocoupler is operable to monitor a differential voltage of the first input or the first output. The system may further include an input/output (IO) expander receiving a status signal representing a state of the first fuse or relay, wherein only a single input port of the IO expander receives the status signal representing the state of the first fuse or relay.Type: ApplicationFiled: October 29, 2019Publication date: January 5, 2023Applicant: Suzhou Littelfuse OVS Co., Ltd.Inventors: Yanqiu JIA, Yu WANG, Du CHENG
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Publication number: 20220381805Abstract: A differential signal current sensor device (100) may include a conductor (102) for conducting electrical current in a current direction. The conductor (102) may include a first slot (120A) extending from a first perimeter edge (122), towards a central axis extending along a length of the conductor (102), and a second slot (120B) extending from a second perimeter edge (124), towards the central axis. The current sensor device (100) may further include a first current sensor (130) positioned within the first slot (120A) and a second current sensor (132) positioned within the second slot (120B).Type: ApplicationFiled: September 20, 2019Publication date: December 1, 2022Applicant: SUZHOU LITTELFUSE OVS CO., LTD.Inventor: Jianfei ZHAO
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Publication number: 20220320847Abstract: Provided is an example of a cable seal that includes a first sealing component, a second sealing component, and a folding member. The first sealing component may have a first diameter. The second sealing component may have a second diameter, where the first diameter is greater than the second diameter. The folding member may be operable to fill a space between the first sealing component and the second sealing component. The first sealing component may be operable to form a first ingress protection seal with a cable box housing fitting, the second sealing component may be operable to form a second ingress protection seal with an electrical cable, and the folding member may be operable to react to a force applied to the electrical cable by deforming in response to the force and enabling maintenance of the first ingress protection seal and the second ingress protection seal.Type: ApplicationFiled: March 28, 2022Publication date: October 6, 2022Applicant: Suzhou Littelfuse OVS Co., Ltd.Inventors: Cheng Du, Jun MA, Dan Jin
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Publication number: 20220262589Abstract: Provided herein is an improved solenoid electrical switch. In some embodiments, a solenoid electrical switch may include a plunger at least partially disposed in a central aperture of a solenoid for rotation and axial reciprocation between at least two positions into and out of the central aperture relative to a magnetic coupling member. The plunger may include a first component including a main body and a central slot within the main body, and a second component at least partially disposed within the central slot, wherein the second component may include an engagement surface engaged with an inner surface of the central slot.Type: ApplicationFiled: July 16, 2019Publication date: August 18, 2022Applicant: Suzhou Littelfuse OVS Co., Ltd.Inventors: Yanqiu JIA, Dan JIN, Du Cheng
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Publication number: 20220254593Abstract: Provided are approaches for integrating solenoids and fuses within a compact housing. In one approach, a fuse apparatus (100) may include a housing (102) including a main body (104), a cover (106) coupled to a first side (110) of the main body (104), and a base (112) coupled to a second side (116) of the main body (104), wherein the cover (106) and the main body (104) define a fuse cavity (120), and wherein the base (112) and the main body (104) define a main cavity. (122) The fuse apparatus (100) may further include a plurality of fuses (124) disposed within the fuse cavity (120), and a plurality of solenoids (130) electrically connected to a printed circuit board (PCB) (132), wherein the plurality of fuses (124) is disposed above the PCB (132), and wherein the PCB (132) is positioned within the main cavity (122).Type: ApplicationFiled: July 11, 2019Publication date: August 11, 2022Applicant: SUZHOU LITTELFUSE OVS CO., LTD.Inventors: Du Cheng, Yanqiu JIA, Dan Jin